Electric heating apparatus.



f'. GUNRAD. ELUTRIC HEATING APPARATUS. APVPLIOATIN IIIIED JUNE B, 1907y 912,994. Patented Feb. 23, 1909. 3 SHEETS-SHEET 1A Gm l V, al Y- F. GONRAD. BLBGTBIU HEATING APPARATUS.

APPLIOATIDH FILED JUNE B( 1907.

Patented Feb. 23, 1909.

3 SHEETS-SHEET 2.

NVENTOR WHNSSES MTUR'NEY F. CONRAD.

CTRI HEATING AYPARATUS.

APPLIUATION rum JUNE e. 1907.

ELE

Patented Feb. 23, 1909.

ATTORNEY 'UNITED u OFFICE.

FRANK CONRAD, Ol" SWISSVALE, PENNSYLVANIA, ASSIGNOR T '\\"llSl`lNUllt)lJSlC lLlUlllC i c MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

ELECTRIC HEATING APPARATUS.

Specietipn of Letters Patent.

Patented lleb. 23, 1909.

Applioltinn tiled .Tuna 8, 1907. Serial No. 377,927.

My invention relates to electrical heating n apparatus und it has for its object to provide :i siinple,vdurable and effective device, for heating water and generating steam for vari ous purposes.

W hen electric und stczun locomotives are of steam heated passen er curs it is necessary to provide :i Suitable evice with which the electric locomotive may he equipped for supplying Steam to its truin of vehicles in ,1, rolt] Weather.

Mzcording to my present invention, l pros vide n stcun'i generator that requires little 'or no attention from the locomotive driver :und muy receive its energy, in the forni of 5, elet-tric current. from the source which Supplie' thc locomotive driving;r motors.

j. ie :i diugi'aiunmlic view of u system clnbodliFN ing my iniprovcr'l inviting device. Fig. il is fl :in cli-vution of n 4sl'iecitic device constructed in `:woor-dence with in invention. und Fig. L is u det-.lil vieu' of thtI heater shown in Figs. L). und 3.

liefen-ing' to the drnwing, thc device here guru l. ol the uceoriipun'ving drawings,

other conducting material that is capable el' yemployed interchangeably for hauling trains t is at the same time electrically insulated therefrom.

AEach of the taps comprises u stutling bei:`

which projects from the wall of the chambei' with which 1t communicates, and pro- Gn.

'vided with un insulatingV sleeve 1.1 having un end flange or collar 12, thc outer extremity of the stulling hox being minder-bored to receive this flange or collar. A. second insulating sleeve lil, having :in end iunge il, 6;,

is secured to the sluiting box by n bushing which iS tilted over the tubo to engage the flange 14 and is screwthi-ended into the outer extremity ol. the stulling box. Short length of pipe lo which is adapted to con neet the stuiling box with the tube l, extends through the sleeve 1.3 and enters thc sleeve l1 for i1 Vshort distance. .Suitable steampucking is introduced into the stuffing box around the pipe l() :ind between the ends of the insulating tubes. In this iyay, Steamtight joints :ire formed between the eht1mlnu's 3 und 4 and the conducting,- coil or helix 1. und, ut the saine linie, the two niember ure electrically insulated from euch other.

The inner vnd of the pipe [(3 is provided with n tip or sleevel 1l' formed of curhon or ot' taps, similar to that illustrated in Section .z5 illustrated comprise@ a r-oil or helix of tubing comprising :i plurulitj. ol" hivers; or sections E of spiral forni. the ,sections hcing so connet-ted to forni a plurulity of fluid-contor which the device 1s constructed.

ductingr 'Pathe in multiple, while all the The steam generator comprises, in detail,

f oc -..t't\ nettoie l.) uhllethe taps conntc 1n ci me :i coil or helix l of current-conductingtubing having n plurnhty of layer, 2 of spiral torni, u suppl)r chamber il and a discharge chmnsuhstnntiulljy` equal intervals throughout their lengths, u hns-e 5, suliporting rods und eros.- hars or `tripez 7, which are scoured to the rods f1 und are insulated from the s. tute communieetefv with the chambers and in Fig. which may be employed in the construction of u .'iecific heating device will depend upon the length, size und niteriel of the tuhe l and upon the electrical voltage diutc points in the helix :intl consequently the r ends of two tube sections are joined to the 5o turni; of the conducting,r tube by spacingr that illustrated in Fig. 4.

Electrical connections are established through terminals 1S and, as illustrated in Fig'. l of the drawin s, the entire length oi thc tube l is connecte in series with the line. lofi s her 4. which communicant; with thchelix at taps by double pipe connections 2O such :1s umy modifications in the size and arrangement of admission and discharge chambers, a fini details of the device itself may be effected within the scope of my invention. l

[ claim as my invention: i

l. An electric heating device comprising a i helix of Huid-containing tubing, pressure heads or chambers communicatin therewith, and insulating sleeves interposed etween the heads and the tubing. i

An electric heating device comprising a helix of fluid-containing, electric-currentl conducting tubing, pressure heads or chainn f bers communicating therewith, insulating i sleeves interposed between the heads and the i tubing, and tips or sleeves at the extremities f of the tubing, said sleeves being formed of conducting material adapted to resist elec trolytic action.

An electric heating device comprising a helix ot' fluid-containing, electric-currciit conducting tubing, pressure heads or chahiv bers communicating therewith, insulating sleeves interposed between the heads and the tubing, and carbon tips or sleeves at the ends of the tubing.

4. In anletricfheating device, the coinbinaiionjvith nimm-containing metal tube, of tips Yor sleeves for the tube which form a channel ochannels through which the fluid must pass in entering and leaving the tube, said members being adapted to resist the destructive electrolytic action resulting from a leakage of electric energy through the Huid-containing tube.

5. In an. electric heating device, the combination with a supply chamber and a discharge chamber, a helix of conducting tub ing, and a plurality of taps for establishing communication between the chambers and the helix, of means for insulating the chamber walls from the helix.

t5. An electric heating device comprisiig containing helix of conducting tubing, a plurality of short pipes that communicate with the helix at end and intermediate points, and means for establishing communication between the pipes and the chambers and for electrically insulating the pipes from i the chambers. l

chambers secured theretoa helix of conduct` ing tubing, means for sup )orting and insulating the helix from the base, short pipes communicating with the helix at end and intermediate points, means for electrically insulating the pipes from the chambers and for establishing communication between saitl parts. and tips or sleeves at the extremities ot' the pipes, said" sleeves being formed of conducting material adapted to resist desi rue! ive electrolvtic action.

t). in electric heating device com )rising :rf

base, Huid-pressure admission and ischarge chambers secured thei'eto,a helix of conducting tubing. means for sup )ortinr and insulating the helix from the ase, s iort pipes communicating with the helix at end and intermediate points, means for electrically iiisiilatin r the pipes from the chambers and for establishing communication between said pai-ts, and carbon tips or sleeves at the ends of the pipes.

10. .in electi'ic heating device comprisingl admission and discharge chambers, a conducting tiibe and taps establishing communication between the tube and the chambers. said taps comprisin insulating tubes oi' sleeves for electricali7 scparatin the tube 'from the chamber walls, and stu ling boxes for providing a tight joint betwecntthem.

In testimony whereof. l have hereunto subscribed my naine this 31st day of May,1907.

FRANK CONRAD.

Witnesses C, l AALBOBG, Binner Hines. 

